2001 TOYOTA AVALON fuel cap

A10518
5 mm
Hexagon
Wrench
SF071-05
A10838
TOYOTA Hand-Held Tester
DLC3
B06523
Sound Scope
SF-84
- SFIFUEL CUT RPM
1193 Author
: Date
:
2001 AVALON (RM808U)
FUEL CUT RPM
INSPECTION
1. REMOVE V-BANK COVER
(a) Using a 5 mm hexagon wrench, remove the 3 cap nuts.
(b) Loosen the V-bank cover fastener counterclockwise.
(c) Remove the V-bank cover.
2. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
3. CONNECT LEXUS HAND-HELD TESTER OR OBDII
SCAN TOOL
(a) Connect the TOYOTA hand-held tester or OBDII scan
tool to the DLC3.
(b) Please refer to the TOYOTA hand-held tester or OBDII
scan tool operator's manual for further details.
4. INSPECT FUEL CUT OFF PRM
(a) Increase the engine speed to at least 3,500 rpm.
(b) Use a sound scope to check for injector operating noise.
(c) Check that when the throttle lever is released, injector op-
eration noise stops momentarily and then resumes.
HINT:
Measure with the A/C OFF.
Fuel return rpm: 1,200 rpm
5. DISCONNECT LEXUS HAND-HELD TESTER OR
OBDII SCAN TOOL
6. REINSTALL V-BANK COVER
(a) Using 5 mm hexagon wrench, install the V-bank cover
with the 3 cap nuts.
(b) Press down the V-bank cover fastener.

SF0LR-02
B09083
Heated Oxygen Sensor (Bank 1 Sensor 2)
Before installing the heated oxygen sensor,
twist the sensor wire counterclockwise
3 and 1/2 turns. HINT:
After installing the heated oxygen sensor,
check that the sensor wire is not twisted,
if it is twisted,remove the heated oxygen
sensor and reinstall it.
The Location of Fuel Tank Cushion
No.1 Fuel Tank
Protector
Fuel Tank Vent
Tube Set Plate
Fuel Pump
Fuel Outlet Tube
Fuel TankFuel Inlet Hose
Fuel Inlet Pipe Fuel Inlet Pipe Shield
Fuel Tank Cap
Fuel Inlet Pipe Protector
Heated Oxygen Sensor
(Bank 1 Sensor 2)Heat Insulator Fuel Tank Band
Center Exhaust Pipe  Gasket Gasket  Gasket
 Non-reusable part
N´m (kgf´cm, ft´lbf): Specified torque
39 (400, 29)
44 (450, 33)
43 (440, 32)
x 8

 Gasket
Compression
Spring
43 (440, 32)
EVAP Line Hose
Vent Line Hose
Charcoal
Canister
- SFIFUEL TANK AND LINE
SF-27
1136 Author
: Date
:
2001 AVALON (RM808U)
FUEL TANK AND LINE
COMPONENTS
CAUTION:
Always use new gaskets when replacing the fuel tank or component parts.
Apply the proper torque to all parts tightened.

B01020
B06618
Align
B09079
B09076
Fuel Hose
Clamp
B06613
SF-26
- SFIINJECTOR
1135 Author
: Date
:
2001 AVALON (RM808U)
(m) Tighten the 4 bolts holding the delivery pipes to the intake
manifold.
Torque: 10 N´m (100 kgf´cm, 7 ft´lbf)
(n) Tighten the bolt holding the No.1 fuel pipe to the intake
manifold.
Torque: 19.5 N´m (200 kgf´cm, 14 ft´lbf)
2. CONNECT NO.1 FUEL PIPE
(a) Align the alignment marks (white paint) on the No.1 fuel
pipe.
(b) Connect the No.1 fuel pipe (fuel tube connector) to the
fuel filter.
CAUTION:
Perform connecting operations of the fuel tube connector
(quick type) after observing the precautions.
(c) Surely install the fuel hose clamp to the fuel filter with
ºclickº sound.
(d) After installing the clamp, check that the clamp is fixed by
pulling up the clamp.
3. INSTALL AIR ASSIST HOSES AND PIPE
4. CONNECT INJECTOR CONNECTORS
5. INSTALL AIR INTAKE CHAMBER ASSEMBLY
(See page EM-59)
6. INSTALL AIR CLEANER HOSE WITH RESONATOR
7. INSTALL V-BANK COVER
(a) Using 5 mm hexagon wrench, install the V-bank cover
with the 3 cap nuts.
(b) Press down the V-bank cover fastener.
8. CHECK FOR FUEL LEAKS

SF0ZR-02
A10518
5 mm
Hexagon
Wrench
S04505
B06613
B09076
Fuel Hose
Clamp
B09077
- SFIINJECTOR
SF-21
1130 Author
: Date
:
2001 AVALON (RM808U)
REMOVAL
1. REMOVE V-BANK COVER
(a) Using a 5 mm hexagon wrench, remove the 3 cap nuts.
(b) Loosen the V-bank cover fastener counterclockwise.
(c) Remove the V-bank cover.
2. REMOVE AIR CLEANER HOSE WITH RESONATOR
3. REMOVE AIR INTAKE CHAMBER ASSEMBLY
(See page EM-31)
4. DISCONNECT INJECTOR CONNECTORS
5. REMOVE AIR ASSIST HOSES AND PIPE
6. DISCONNECT NO.1 FUEL PIPE
(a) Remove the fuel hose clamp.
(b) Disconnect the No.1 fuel pipe (fuel tube connector) from
the fuel filter outlet.
CAUTION:

Perform disconnecting operations of the fuel tube
connector (quick type) after observing the precau-
tions (See page SF-1).

As there is retained pressure in the fuel pipe line, pre-
vent it from splashing inside the engine compart-
ment.

SF0LC-03
- SFISFI SYSTEM
SF-1
111 0 Author
: Date
:
2001 AVALON (RM808U)
SFI SYSTEM
PRECAUTION
1. BEFORE WORKING ON FUEL SYSTEM, DISCON-
NECT NEGATIVE (-) TERMINAL CABLE FROM BAT-
TERY
HINT:
Any diagnostic trouble code retained by the computer will be
erased when the negative (-) terminal cable is removed from
the battery.
Therefore, if necessary, read the diagnosis before removing the
negative (-) terminal cable from the battery.
2. DO NOT SMOKE OR WORK NEAR AN OPEN FLAME
WHEN WORKING ON FUEL SYSTEM
3. KEEP GASOLINE AWAY FROM RUBBER OR LEATH-
ER PARTS
4. MAINTENANCE PRECAUTIONS
(a) In event of engine misfire, these precautions should be
taken.
(1) Check proper connection to battery terminals, etc.
(2) After repair work, check that the ignition coil termi-
nals and all other ignition system lines are recon-
nected securely.
(3) When cleaning the engine compartment, be espe-
cially careful to protect the electrical system from
water.
(b) Precautions when handling the oxygen sensor.
(1) Do not allow oxygen sensor to drop or hit against an
object.
(2) Do not allow the sensor to come into contact with
water.
5. IF VEHICLE IS EQUIPPED WITH A MOBILE RADIO
SYSTEM (HAM, CB, ETC.)
If the vehicle is equipped with a mobile communication system,
refer to the precaution in the IN section.
6. AIR INDUCTION SYSTEM
(a) Separation of the engine oil dipstick, oil filler cap, PCV
hose, etc. may cause the engine to run out of tune.
(b) Disconnection, looseness or cracks in the parts of the air
induction system between the throttle body and cylinder
head will allow air suction and cause the engine to run out
of tune.
7. ELECTRONIC CONTROL SYSTEM
(a) Before removing SFI wiring connectors, terminals, etc.,
first disconnect the power by either turning the ignition
switch to LOCK or disconnecting the negative (-) terminal
cable from the battery.
HINT:
Always check the diagnostic trouble code before disconnecting
the negative (-) terminal cable from the battery.

SF0ZT-02
A10518
5 mm
Hexagon
Wrench
B09090
B09091(d)
(b)
(c)
(e)
B09092
(j)(g)
(h) (f)
(k) (i)
SF-36
- SFITHROTTLE BODY
1145 Author
: Date
:
2001 AVALON (RM808U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. REMOVE V-BANK COVER
(a) Using a 5 mm hexagon wrench, remove the 3 cap nuts.
(b) Loosen the V-bank cover fastener counterclockwise.
HINT:
At the time of installation, please refer to the following items.
Press down the V-bank cover fastener.
(c) Remove the V-bank cover.
3. REMOVE AIR CLEANER HOSE WITH RESONATOR
(a) Disconnect the PCV hose.
(b) Disconnect the vacuum hose (from the VSV for the active
engine control mount).
(c) Loosen the 3 hose clamps, and remove the air cleaner
hose with the resonator.
4. DISCONNECT ACCELERATOR CABLE AND
THROTTLE CABLE
5. REMOVE THROTTLE BODY
(a) Remove the bolt holding the throttle body to the throttle
body bracket.
Torque: 19.5 N´m (200 kgf´cm, 14 ft´lbf)
(b) Disconnect the throttle position sensor connector.
(c) Disconnect the IAC valve connector.
(d) Disconnect the wire clamp.
(e) Disconnect the brake booster vacuum hose.
(f) Disconnect the water bypass hose (from the intake man-
ifold).
(g) Disconnect the water bypass hose (from the water inlet
housing).
(h) Disconnect the air assist hose.
(i) Disconnect the fuel vapor feed hose (from the emission
control valve set).
(j) Disconnect the vacuum hose (from the No.1 ACIS VSV).
(k) Disconnect the vacuum hose (from the vacuum tank for
the ACIS).